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I get a black screen after login on ubuntu 18.04. I saw a lot of questions and "solutions" on the web but no one worked for me. By doing ctrl + alt + F2,

I tried:

sudo dpkg --configure -a
sudo apt-get update
sudo apt-get upgrade -y 
sudo reboot

and I also tried to reinstall ubuntu-desktop:

sudo apt-get install ubuntu-desktop
sudo apt-get update
sudo apt-get upgrade

No one of this solution worked. I also tried to configure my VM by increase video memory. I also try solutions here: ubuntu 18.04 Black screen after login .

I launch ubuntu on Virtual Box 6.1. My OS is Windows 10.

This problem seems to appear randomly. I install my VM. I work with it. I shutdown it. I re-work with it, I shutdown it. And then, black screen after login.

How can I fixed it?

EDIT

I already asked on stackoverflow, but I move the question here after some advices. I will close it on stackoverflow.

Adam Bellaïche
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1 Answers1

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I have a similar issue with 20.04 on virtual box 6.1 but it's not occasional, it occurs every time after login. It started this morning and affects 2 separate VMs - ubuntu 20.04 so I suspect it's an update on the host.

Until I find a real fix, there are 2 ways around that worked for me

1- change the display adapter from VMSVGA to VBoxSVGA in the VM settings OR 2- at login, changed from X11 to Wayland (when you click on your name, there a "setting" icon that appears on the bottom right that lets you choose between "Ubuntu" or "Ubuntu on Wayland", at least on 20.04)

user1082287
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